Hewlett-Packard HP 15C Vintage Scientific Calculator Rare Collectible TESTED

HP 27S Scientific Calculator with Case Hewlett Packard - Tested Working

Vintage Hewlett Packard HP-33S Scientific Calculator Tested Working W/ Case

Vintage Hewlett Packard 28C Calculator Tested Working + 2 Manuals

Vtg HEWLETT PACKARD HP 28S Scientific Calculator TESTED 1986 NEW Batteries

VINTAGE HP 22S SCIENTIFIC CALCULATOR HEWLETT PACKARD WORKS PERFECTLY

Hewlett-Packard HP 33S Scientific Calculator w/Slip Case Tested Works

Vintage HP Hewitt-Packard 28S Advanced Scientific Calculator - Tested, See notes